Exchange Server
CVE-2020-0903
MEDIUM
Severity by source
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
1DescriptionNVD
A cross-site-scripting (XSS) vulnerability exists when Microsoft Exchange Server does not properly sanitize a specially crafted web request to an affected Exchange server, aka 'Microsoft Exchange Server Spoofing Vulnerability'.
AnalysisAI
A cross-site-scripting (XSS) vulnerability exists when Microsoft Exchange Server does not properly sanitize a specially crafted web request to an affected Exchange server, aka 'Microsoft Exchange. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.
Technical ContextAI
This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. A cross-site-scripting (XSS) vulnerability exists when Microsoft Exchange Server does not properly sanitize a specially crafted web request to an affected Exchange server, aka 'Microsoft Exchange Server Spoofing Vulnerability'. Affected products include: Microsoft Exchange Server.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.
More in Exchange Server
View allMicrosoft Exchange Server contains a pre-authentication SSRF vulnerability known as 'ProxyShell' that allows unauthentic
Microsoft Exchange Server contains a server-side request forgery (SSRF) vulnerability known as 'ProxyLogon' that allows
Microsoft Exchange Server contains a privilege escalation vulnerability in the PowerShell backend that allows authentica
Microsoft Exchange Server allows post-authentication arbitrary file write that enables web shell deployment, the primary
Microsoft Exchange Server Remote Code Execution Vulnerability. Rated high severity (CVSS 8.8), this vulnerability is rem
Microsoft Exchange Server Information Disclosure Vulnerability. Rated high severity (CVSS 7.3), this vulnerability is re
Microsoft Exchange Server Elevation of Privilege Vulnerability. Rated high severity (CVSS 8.8), this vulnerability is re
Microsoft Exchange Server allows authenticated attackers to write arbitrary files to the server filesystem, the third co
Remote code execution in Microsoft Exchange Server 2013, 2016, and 2019 allows authenticated attackers to execute arbitr
Microsoft Exchange Server Spoofing Vulnerability. Rated medium severity (CVSS 6.5), this vulnerability is remotely explo
Microsoft Exchange Server Unified Messaging service contains a deserialization vulnerability that allows authenticated a
Microsoft Exchange Server Remote Code Execution Vulnerability. Rated high severity (CVSS 7.2), this vulnerability is rem
Same weakness CWE-79 – Cross-site Scripting (XSS)
View allShare
External POC / Exploit Code
Leaving vuln.today